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Results: 1 through 50 of 11,678 (0.324 secs)
You searched for: creator:"xu"
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[audio]Enter the Mojodojo - xu
Techno electro for mind body manipulation
Keywords: techno; electro; mp3; mojodojo
Downloads: 127
[audio]XU_Live_Set_Memory - xu
Live minimal techno set from Xu of Mojodojo Media
Keywords: techno; minimal; mp3; live set; mojodojo media; xu; funky deep techno
Downloads: 64
[audio]XU_For the Moment - XU
eltronica techno with and without narrative for that dark sci fi vibe.
Keywords: minimal techno; soundscape; story music; xu; mojodojomedia; mojodojo
Downloads: 89
[audio]Get Behind Me - XU
minimal dark techno by XU for Mojodojo Media
Keywords: minimal; techno; music; mp3; mojodojo; xu
Downloads: 191
[audio]Live Set Memory - XU
Original Live Minimal Set By Xu from Mojodojo Media
Keywords: minimal; techno; music; mp3; mojodojo; xu
Downloads: 519 5.00 out of 5 stars5.00 out of 5 stars5.00 out of 5 stars5.00 out of 5 stars5.00 out of 5 stars(1 review)
[audio]XU - Arketyp - [ndn024] - xu

Keywords: Spoken Word
Downloads: 3,020
[audio]XU-Deconstructure - XU
The first release for TLHOTRA is an album by the two man project XU. Deconstructure features six tracks which contains subtle recordings of organ, piano, voices etc. together with gentle electronics. These songs are thematically arranged in a calm but also eerie atmosphere around abandoned places, where rust and shadows speaks in silence and nature taking over relics from the modern society.
Keywords: experimental electronica; ambient
Downloads: 2,027
[texts]The Theory of Stochastic Pseudo-differential Operators and Its Applications, I - Xu Liu
The purpose of this paper is to establish the theory of stochastic pseudo-differential operators and give its applications in stochastic partial differential equations. First, we introduce some concepts on stochastic pseudo-differential operators and prove their fundamental properties. Also, we present the boundedness theory, invertibility of stochastic elliptic operators and the Garding inequality...
Downloads: 5
[texts]Remarks on Murre's conjecture on Chow groups - Kejian Xu
For certain product varieties, Murre's conjecture on Chow groups is investigated. In particular, it is proved that Murre's conjecture (B) is true for two kinds of four-folds. Precisely, if $C$ is a curve and $X$ is an elliptic modular threefold over $k$ (an algebraically closed field of characteristic 0) or an abelian variety of dimension 3, then Murre's conjecture (B) is true for the fourfold $X\times C.$
Downloads: 19
[texts]Positive energy theorem for (4+1)-dimensional asymptotically anti-de Sitter spacetimes - Yaohua Wang
We define the total energy-momenta for (4+1)-dimensional asymptotically anti-de Sitter spacetimes, and prove the positive energy theorem for such spacetimes.
Downloads: 3
[texts]Discrete Quasi-Einstein Metrics and Combinatorial Curvature Flows in 3-Dimension - Huabin Ge
We define Discrete Quasi-Einstein metrics (DQE-metrics) as the critical points of discrete total curvature functional on triangulated 3-manifolds. We study DQE-metrics by introducing some combinatorial curvature flows. We prove that these flows produce solutions which converge to discrete quasi-Einstein metrics when the initial energy is small enough. The proof relies on a careful analysis of discrete dual-Laplacians which we interpret as the Jacobian matrix of the curvature map...
Downloads: 6
[texts]Calderon-Type Uniqueness Theorem for Stochastic Partial Differential Equations - Xu Liu
In this Note, we present a Calder\'on-type uniqueness theorem on the Cauchy problem of stochastic partial differential equations. To this aim, we introduce the concept of stochastic pseudo-differential operators, and establish their boundedness and other fundamental properties. The proof of our uniqueness theorem is based on a new Carleman-type estimate.
Downloads: 12
[texts]Discrete schemes for Gaussian curvature and their convergence - Zhiqiang Xu
In this paper, several discrete schemes for Gaussian curvature are surveyed. The convergence property of a modified discrete scheme for the Gaussian curvature is considered. Furthermore, a new discrete scheme for Gaussian curvature is resented. We prove that the new scheme converges at the regular vertex with valence not less than 5. By constructing a counterexample, we also show that it is impossible for building a discrete scheme for Gaussian curvature which converges over the regular vertex w...
Downloads: 24
[texts]5-(Pyridinium-4-yl)-1H-1,2,3,4-tetra-zol-1-ide. (Volume 67) - Xu, Qian
This article is from Acta Crystallographica Section E: Structure Reports Online, volume 67.AbstractIn the title zwitterionic mol­ecule, C6H5N5, the tetra­zole and pyridine rings are nearly coplanar, making a dihedral angle of 2.08 (1)°. In the crystal, mol­ecules are connected by classical N—H⋯N and weak C—H⋯N hydrogen bonds.
Downloads: 1
[texts]Betaine and Beet Molasses Enhance L-Lactic Acid Production by Bacillus coagulans. (Volume 9) - Xu, Ke
This article is from PLoS ONE, volume 9.AbstractLactic acid is an important chemical with various industrial applications, and it can be efficiently produced by fermentation, in which Bacillus coagulans strains present excellent performance. Betaine can promote lactic acid fermentation as an effective osmoprotectant. Here, positive effect of betaine on fermentation by B. coagulans is revealed. Betaine could enhance lactic acid production by protecting l-LDH activity and cell growth from osmotic ...
Downloads: 10
[texts]Hyperbolic positive energy theorem with electromagnetic fields - Yaohua Wang
We establish a type of positive energy theorem for asymptotically anti-de Sitter Einstein-Maxwell initial data sets by using Witten's spinoral techniques.
Downloads: 13
[texts]2-Dimensional Combinatorial Calabi Flow in Hyperbolic Background Geometry - Huabin Ge
For triangulated surfaces locally embedded in the standard hyperbolic space, we introduce combinatorial Calabi flow as the negative gradient flow of combinatorial Calabi energy. We prove that the flow produces solutions which converge to ZCCP-metric (zero curvature circle packing metric) if the initial energy is small enough. Assuming the curvature has a uniform upper bound less than $2\pi$, we prove that combinatorial Calabi flow exists for all time...
Downloads: 10
[texts]Weak Maximum Principle for Strongly Coupled Elliptic Differential Systems - Xu Liu
A classical counterexample due to E. De Giorgi, shows that the weak maximum principle does not remain true for general linear elliptic differential systems. After that, there are some efforts to establish the weak maximum principle for special elliptic differential systems, but the existing works are addressing only the cases of weakly coupled systems, or almost-diagonal systems, or even some systems coupling in various lower order terms...
Downloads: 12
[texts]Compressed Sensing Matrices from Fourier Matrices - Guangwu Xu
The class of Fourier matrices is of special importance in compressed sensing (CS). This paper concerns deterministic construction of compressed sensing matrices from Fourier matrices. By using Katz' character sum estimation, we are able to design a deterministic procedure to select rows from a Fourier matrix to form a good compressed sensing matrix for sparse recovery. The sparsity bound in our construction is similar to that of binary CS matrices constructed by DeVore which greatly improves pre...
Downloads: 18
[texts]Strong Rational Connectedness of Surfaces - Chenyang Xu
We discuss the strong rational connectedness of smooth rationally connected surfaces. We prove in lots of cases, including the smooth locus of a log del Pezzo surface, the rational connectedness indeed implies the strong rational conectedness. This confirms a conjecture due to Hassett and Tschinkel in \cite{ht08}.
Downloads: 4
[texts]Reflected BSDE with monotonicity and general increasing in $y$, and non-Lipschitz conditions in $z$ - Mingyu Xu
In this paper, we study the reflected BSDE with one continuous barrier, under the monotonicity and general increasing condition on $y$ and non Lipschitz condition on $z$. We prove the existence and uniqueness of the solution to these equation by approximation method.
Downloads: 4
[texts]High $p_T$ Identified Particle Spectra - Zhangbu Xu
I will present an overview of identified particle spectra at high $p_T$ ($p_T{}^{>}_{\sim}$ 5 GeV/$c$) in both p+p collisions and AA collisions at RHIC. In p+p collisions, summary of particle ratios of K, $\eta$, $\omega$, $\rho$, $\phi$, $p$, $\bar{p}$, $\Lambda$ and heavy-flavor (open charm, $J/\Psi$) to $\pi$ at high-pt will be compiled and compared to the ratios of integrated yields. The spectra are used in $x_t$ scaling study and compared to pQCD calculations...
Downloads: 1
[texts]Searching for a New Source(s) of T-Violation in Spin Dependent Total Cross Section Measurements - Guanghua Xu
We first re-prove with a more complete method that the the minimum standard model, with the inclusion of the CKM-matrix, requires the T-odd/P-odd total cross section of two spin-1/2 particles to vanish in all orders\cite{gxu}. Then we study the contribution to T-odd/P-odd total scattering cross sections from various channels within the Higgs sector, and optimize conditions for possible experimental measurements of these effects...
Downloads: 3
[texts]SU(3)-structures and Special Lagrangian Geometries - Feng Xu
We generalize Calabi-Yau 3-folds from the special Lagrangian perspective. More precisely, we study SU(3)-structures which admit as "nice" a local special Lagrangian geometry as the flat $\mathbf{C}^3$ or a Calabi-Yau structure does. The underlying almost complex structure may not be integrable. Such SU(3)-structures are called {\it admissible}. Among these, we are particularly interested in a subclass of SU(3)-structures called {\it nearly Calabi-Yau}...
Downloads: 3
[texts]Compact Group Actions On Closed Manifolds of Non-positive Curvature - Bin Xu
A. Borel proved that, if a finite group $F$ acts effectively and continuously on a closed aspherical manifold $M$ with centerless fundamental group $\pi_1(M)$, then a natural homomorphism $\psi$ from $F$ to the outer automorphism group ${\rm Out} \pi_1(M)$ of $\pi_1(M)$, called the associated abstract kernel, is a monomorphism. In this paper, we investigate to what extent Borel's theorem holds for a compact Lie group $G$ acting effectively and smoothly on a particular orientable aspherical manif...
Downloads: 1
[texts]The Degree of Symmetry of Certain Compact Smooth Manifolds II - Bin Xu
In this paper, we give the sharp estimates for the degree of symmetry and the semi-simple degree of symmetry of certain four dimensional fiber bundles by virtue of the rigidity theorem of harmonic maps due to Schoen and Yau. As a corollary of this estimate, we compute the degree of symmetry and the semi-simple degree of symmetry of ${\Bbb C}P^2\times V$, where $V$ is closed smooth manifold admitting a real analytic Riemannian metric of non-positive curvature...
Downloads: 1
[texts]Applications of braided endomorphisms from conformal inclusions - Feng Xu
We give three applications of general theory about braided endomorphisms from conformal inclusions developed previously by us. The first is an example of subfactors associated with conformal inclusion whose dual fusion ring is non-commutative. In the second application we show that the Kac-Wakimoto hypothesis about certain relations between branching rules and S-matrices, which has existed for almost a decade, is not true in at least three examples...
Downloads: 11
[audio]Muslim Mag - Beina Xu
The magazine industry is tough enough as it is. But for niche magazines, it's even harder to break out. Here's a story about a writer, the magazine she works for, and the stacks of paper in between.
Keywords: Muslim Mag
Downloads: 73
[texts]Can cold quark matter be solid? - Renxin Xu
The state of cold quark matter really challenges both astrophysicists and particle physicists, even many-body physicists. It is conventionally suggested that BCS-like color superconductivity occurs in cold quark matter; however, other scenarios with a ground state rather than of Fermi gas could still be possible. It is addressed that quarks are dressed and clustering in cold quark matter at realistic baryon densities of compact stars, since a weakly coupling treatment of the interaction between ...
Downloads: 6
[texts]Identified Hadrons and Jet Chemistry for p+p and Au+Au Collisions at RHIC - Yichun Xu
The study of hadron spectra at high $p_{T}$ in p+p collisions provides a good test of perturbative quantum chromo-dynamic calculations (pQCD) and baseline for measurements of nuclear modification factors in Au+Au collisions. Using events triggered by the Barrel Electro-Magnetic Calorimeter, identified charged hadron transverse momentum ($p_T$) spectra are measured up to 15 GeV/$c$ at mid-rapidity ($\mid y\mid$ $$ 5.5 GeV/c) for kaon are compared with that of pion in Au + Au collisions at 200 GeV...
Downloads: 8
[texts]The state of cold quark matter: a model-independent view - Renxin Xu
From a model-independent point of view, we address the possibility that quark clustering could occur in cold quark matter at realistic baryon densities because of the likely strong coupling between quarks in compact stars.
Downloads: 15
[texts]A New Parallel N-body Gravity Solver: TPM - Guohong Xu
We have developed a gravity solver based on combining the well developed Particle-Mesh (PM) method and TREE methods. It is designed for and has been implemented on parallel computer architectures. The new code can deal with tens of millions of particles on current computers, with the calculation done on a parallel supercomputer or a group of workstations. Typically, the spatial resolution is enhanced by more than a factor of 20 over the pure PM code with mass resolution retained at nearly the PM...
Downloads: 8
[texts]Hydrodynamic and N-body Schemes On An Unstructured, Adaptive Mesh with Applications to Cosmological Simulations - Guohong Xu
The theory and application of numerical methods for unstructured meshes have been improved significantly in recent years. Because the grids can be place arbitrarily in space, unstructured meshes can provide much higher spatial resolution than regular meshes. The built-in nature of mesh adaptivity for unstructured meshes gives one way to simulate highly dynamic, hierarchical problems involving both collisionless dark matter and collisional gas dynamics...
Downloads: 4
[texts]A New Unified Dark Fluid Model and Its Cosmic Constraint - Lixin Xu
In this paper, we propose a new unified dark fluid (UDF) model with equation of state (EoS) $w(a)=-\alpha/(\beta a^{-n}+1)$, which includes the generalized Chaplygin gas model (gGg) as its special case, where $\alpha$, $\beta$ and $n$ are three positive numbers. It is clear that this model reduces to the gCg model with EoS $w(a)=-B_s/(B_s+(1-B_s)a^{-3(1+\alpha)})$, when $\alpha=1$, $\beta=(1-B_s)/B_s$ and $n=3(1+\alpha)$...
Downloads: 4
[texts]The performance of orthogonal multi-matching pursuit under RIP - Zhiqiang Xu
The orthogonal multi-matching pursuit (OMMP) is a natural extension of orthogonal matching pursuit (OMP). We denote the OMMP with the parameter $M$ as OMMP(M) where $M\geq 1$ is an integer. The main difference between OMP and OMMP(M) is that OMMP(M) selects $M$ atoms per iteration, while OMP only adds one atom to the optimal atom set. In this paper, we study the performance of orthogonal multi-matching pursuit (OMMP) under RIP...
Downloads: 5
[texts]Time Variable Cosmological Constant from Renormalization Group Equations - Lixin Xu
In this paper, a time variable cosmological constant (CC) from renormalization group equations (RGEs) is explored, where the renormalization scale $\mu^2=R^{-2}_{CC}=Max(\dot{H}+2H^2,-\dot{H})$ is taken. The cosmological parameters, such as dimensionless energy density, deceleration parameter and effective equation of state of CC etc, are derived. Also, the cosmic observational constraints are implemented to test the model's consistence...
Downloads: 8
[texts]Flux homomorphism on symplectic groupoids - Ping Xu
An anologue of the Calabi invariant for Poisson manifolds is considered. For any Poisson manifold $P$, the Poisson bracket on $C^{\infty}(P)$ extends to a Lie bracket on the space $\Omega^{1}(P)$ of all differential one-forms, under which the space $Z^{1}(P)$ of closed one-forms and the space $B^{1}(P)$ of exact one-forms are Lie subalgebras. These Lie algebras are related by the exact sequence: $$0\lon \reals \lon C^{\infty}(P)\stackrel{d}{\lon} Z^{1}(P)\stackrel{f}{\lon} H^{1}(P, \reals)\lon 0...
Downloads: 4
[texts]Constraints to Holographic Dark Energy Model via Type Ia Supernovae, Baryon Acoustic Oscillation and WMAP - Lixin Xu
In this paper, the holographic dark energy (HDE) model, where the future event horizon is taken as an IR cut-off, is confronted by using currently available cosmic observational data sets which include type Ia supernovae, baryon acoustic oscillation and cosmic microwave background radiation from full information of WMAP-7yr. Via the Markov Chain Monte Carlo method, we obtain the values of model parameter $c= 0.696_{- 0.0737- 0.132- 0.190}^{+ 0.0736+ 0.159+ 0.264}$ with $1,2,3\sigma$ regions...
Downloads: 2
[texts]Mass Differences within Isotopic Multiplets in a SUSY Electro-weak Theory - Guanghua Xu
Based on the idea that electromagnetism is responsible for the mass differences within isotopic multiplets, and possibly also for the whole mass of the electron, a supersymmetric gauge theoretical model based on the group $SU(2)_{L} \times SU(2)_{R} \times U(1)_{Y}$ is constructed. Under some reasonable assumptions to the SUSY particle spectrum, a correct sign for the mass difference within an isotopic multiplet is obtained...
Downloads: 2
[texts]On Hard Lefschetz Conjecture on Lawson Homology - Ze Xu
Friedlander and Mazur proposed a conjecture of hard Lefschetz type on Lawson homology. We shall relate this conjecture to Suslin conjecture on Lawson homology. For abelian varieties, this conjecture is shown to be equivalent to a vanishing conjecture of Beauville type on Lawson homology. For symmetric products of curves, we show that this conjecture amounts to the vanishing conjecture of Beauville type for the Jacobians of the corresponding curves...
Downloads: 4
[texts]Overview of charm production at RHIC - Zhangbu Xu
In this presentation, I discussed a) the charm total cross-section and its comparisons to measurements at other beam energies and pQCD calculations; b) the semileptonic decay of charmed hadrons and the sensitivity of non-photonic leptons to charm quark collective flow and freeze-out; c) semileptonic decayed electron spectrum at high transverse momentum, its comparison to FONLL in p+p and d+Au collisions, and heavy-quark energy loss in Au+Au collisions.
Downloads: 3
[texts]Stable-Range Approach to Short Wave and Khokhlov-Zabolotskaya Equations - Xiaoping Xu
Short wave equations were introduced in connection with the nonlinear reflection of weak shock waves. They also relate to the modulation of a gas-fluid mixture. Khokhlov-Zabolotskaya equation are used to describe the propagation of a diffraction sound beam in a nonlinear medium. We give a new algebraic method of solving these equations by using certain finite-dimensional stable range of the nonlinear terms and obtain large families of new explicit exact solutions parameterized by several functio...
Downloads: 9
[texts]Alternating proximal gradient method for sparse nonnegative Tucker decomposition - Yangyang Xu
Multi-way data arises in many applications such as EEG classification, face recognition, text mining and hyperspectral data analysis. Tensor decomposition has been commonly used to find the hidden factors and elicit the intrinsic structures of the multi-way data. This paper considers sparse nonnegative Tucker decomposition (NTD), which is to decompose a given tensor into the product of a core tensor and some factor matrices with sparsity and nonnegativity constraints...
Downloads: 4
[texts]Gradient estimates for $u_t=ΔF(u)$ on manifolds and some Liouville-type theorems - Xiangjin Xu
In this paper, we first prove a localized Hamilton-type gradient estimate for the positive solutions of Porous Media type equations: $$u_t=\Delta F(u),$$ with $F'(u) > 0$, on a complete Riemannian manifold with Ricci curvature bounded from below. In the second part, we study Fast Diffusion Equation (FDE) and Porous Media Equation (PME): $$u_t=\Delta (u^p),\qquad p>0,$$ and obtain localized Hamilton-type gradient estimates for FDE and PME in a larger range of $p$ than that for Aronson-B\'enilan e...
Downloads: 6
[texts]Quantum groupoids - Ping Xu
We introduce a general notion of quantum universal enveloping algebroids (QUE algebroids), or quantum groupoids, as a unification of quantum groups and star-products. Some basic properties are studied including the twist construction and the classical limits. In particular, we show that a quantum groupoid naturally gives rise to a Lie bialgebroid as a classical limit. Conversely, we formulate a conjecture on the existence of a quantization for any Lie bialgebroid, and prove this conjecture for t...
Downloads: 4
[texts]Quantum dynamical Yang-Baxter equation over a nonabelian base - Ping Xu
In this paper we consider dynamical r-matrices over a nonabelian base. There are two main results. First, corresponding to a fat reductive decomposition of a Lie algebra $\frakg =\frakh \oplus \frakm$, we construct geometrically a non-degenerate triangular dynamical r-matrix using symplectic fibrations. Second, we prove that a triangular dynamical r-matrix $r: \frakh^* \lon \wedge^2 \frakg$ corresponds to a Poisson manifold $\frakh^* \times G$...
Downloads: 4
[texts]Embedding of $C_q$ and $R_q$ into noncommutative $L_p$-spaces, $1\le p - Quanhua Xu
We prove that a quotient of subspace of $C_p\oplus_pR_p$ ($1\le p
Downloads: 2
[texts]Some computations in the cyclic permutations of completely rational nets - Feng Xu
In this paper we calculate certain chiral quantities from the cyclic permutation orbifold of a general completely rational net. We determine the fusion of a fundamental soliton, and by suitably modified arguments of A. Coste , T. Gannon and especially P. Bantay to our setting we are able to prove a number of arithmetic properties including congruence subgroup properties for $S, T$ matrices of a completely rational net defined by K.-H...
Downloads: 7
[texts]Two-dimensional finite-difference lattice Boltzmann method for the complete Navier-Stokes equations of binary fluids - Aiguo Xu
Based on Sirovich's two-fluid kinetic theory and a dodecagonal discrete velocity model, a two-dimensional 61-velocity finite-difference lattice Boltzmann method for the complete Navier-Stokes equations of binary fluids is formulated. Previous constraints, in most existing lattice Boltzmann methods, on the studied systems, like isothermal and nearly incompressible, are released within the present method...
Downloads: 3
[texts]Multiple Parameter Function Approaches to the Equations of Dynamic Convection in a Sea - Xiaoping Xu
One of the most important topics in geophysics is to study convection in a sea. Based on the algebraic characteristics of the equations of dynamic convection in a sea, we introduce various schemes with multiple parameter functions to solve these equations and obtain families of new explicit exact solutions with multiple parameter functions. Moreover, symmetry transformations are used to simplify our arguments.
Downloads: 4
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